San Francisco 49ers wide receiver Michael Crabtree suffered a torn Achilles tendon during organized team activities Tuesday and will soon undergo what could be season-ending surgery, a person informed of the injury told USA TODAY Sports.

The person spoke on condition of anonymity because the 49ers haven't commented on the injury, which used to be an automatic season-ender but has since become one that can sometimes be rehabbed in a matter of months -- as Baltimore Ravens linebacker Terrell Suggs and Tampa Bay Buccaneers defensive end Da'Quan Bowers did last year.

Both players tore the tendon in the spring and returned to the field after starting the year on the physically unable to perform list.

Crabtree, 25, is coming off a breakout season in which he had career-highs in receptions (85), yards (1,105) and touchdowns (nine), following three seasons in which he struggled to live up to the expectations placed upon him when the Niners selected him 10th overall in 2009.

The injury to Crabtree comes at an unfortunate point in his career and for the 49ers, though the team has been working to build depth on offense. Perhaps the Niners would consider bringing back Randy Moss, who hasn't yet retired and tweeted in March he "wished we could've finished the job!!"